Autism rates across the country continue to climb, but for the first time, the demographics of children diagnosed with the developmental disability are starting to shift in a big way, according to new data from the Centers for Disease Control and Prevention.

A report out Thursday in the federal agency’s Morbidity and Mortality Weekly Report shows that 1 in 36 children, or 2.8%, have autism.

The new estimate is based on information gathered on 8-year-old children in 11 communities in 2020 by the CDC’s Autism and Developmental Disabilities Monitoring, or ADDM, network.